Scoring Question.. maybe GameChanger blind spot?

2 outs, runner on second. Single to left field, run scores.

3rd baseman cuts off the throw home, batter is trying to advance to second on the throw, and is out easily (or in a rundown) with a good throw to second but the ball is thrown away. Runner remains at 2nd.

2 more runs end up scoring in the inning.

I scored this a single, runner advances to 2nd on a throwing error by the 3rd baseman. I believe technically, this should make the last 2 runs in the inning unearned, since the error should have been the third out. I suppose there is no way to communicate to GameChanger that the error should have been the third out. GameChanger scored all 3 runs as earned and I don't see a way to adjust this without making up an error or something for the next batter.

Am I missing something here?